Question

how do birds hatch the egg

Answer 1

Birds have to sit on their eggs to keep them warm. It's a bit like baking a cake - the warmth from the parent bird makes sure that the chicks inside develop properly. This is called 'incubation'. ... Most birds lay one egg a day until the eggs are all laid.

Answer 2

The bird hatch the egg the bird will near the egg and heat the egg after egg will hatch